Blouse: Zara (similar)
Trousers: LOVE (similar)
Heels: ASOS 

Like an all-black outfit, you can't really go wrong with an entire white look - especially in summer. I love these wide leg trousers - they've proven to be really versatile (you may have seen them pop up in a few of my previous posts!) and are really light and airy, making them perfect in the heat.